Improvement in paper-perforating machines



80., One 0I' In0re fings With Tecesses fornled in their faces, Whereby the punches lly be detached fron1 the rings without Tetnoving the Tings 0Il the shaf a1(1 the rings having angeS in theil' edges int0 Which iinges are secured the punches, substanially as and foI' the purp0se described.

given space between each 0f the S6Ties, and with recesses formed in their Sides, in combill...bti0[1 With a shft with spiral gr00ve formed therein, Whereby the pSSage of the chips from the n1achine is facilitated, substantially as de 

